To integrate your MailerLite account with Optingun, go to your top right dropdown menu and choose Integrations. Choose Optingun and copy your account API key.
Then log in to your Optingun account. Go to the hamburger menu on the top left and choose API configuration. Select MailerLite and paste your API key.
Then click Save. Now all of your settings are automatically saved.
To connect your form to MailerLite, go ahead and create a new form within Optingun. Go to Settings and then Integrations and choose MailerLite.
Choose your group and click Add this integration. Now your forms are connected!